This sighting reported via secret sources also sounds more like a neighbourhood watch than a kidnapping attempt to me.
http://www.express.co.uk/news/uk/128671/Madeleine-I-know-how-she-was-taken
"In my view too little attention has been paid to what I believe was a key sighting.
A dark-haired woman was observed standing near a street light at a road junction that overlooks apartment 5A. What was she doing in the eerily quiet area, which is not near a bus stop, taxi rank, cafes or shops?
She was seen looking at the apartment as the late evening gloom descended.
Was she also watching to see the movements of Kate and Gerry McCann and their holiday friends, the so-called Tapas Seven? I think so."
Not this one again.
Jenny Murat, 78, the mother of wrongly accused Robert Murat, has potentially breakthrough evidence but no one has spoken to her. At 8pm on May 3, 2007, she went to a supermarket and then drove past Apartment 5a and saw a woman hanging around. Her notes from the time say: “There was a woman standing on the corner under a lamp post.
“I don’t remember much of her other than she was of slight build and was wearing a plum coloured jacket. She moved around the lamp post as if trying not to be noticed.”
As she turned into the driveway of her home, Casa Liliana, she was nearly hit by a car going the wrong way. “When I stopped to open the gates I could not see the car but the woman was in the road looking in my direction.”
http://www.express.co.uk/news/uk/574547/Maddie-libel-detective-ruined-Retirement-retreat-seized-cover-McCann-payoutQ. Relative to whether I know Jane Tanner;
Now I know her name, description of the clothes and photos which I have seen in the press. At that time I knew of her as a member of the group but did not know her name. I do not remember having seen her when I spoke with Gerry, but I believe I saw her when I first ventured out. She was stopped on the street in front of one of the group's apartments when I passed her down towards the exit to my apartment. I do not know if it was her apartment or not. I remember that she was wearing the colour purple.
http://www.mccannpjfiles.co.uk/PJ/JEREMY-WILKINS-ROGATORY.htm